Hoop-forming machine



R. RICHARDSON. HOOP FORMING MACHINE. APPLICATION FILED APR.21, -19 19.

1921. SHEET 1'.

Patented Mar. 1

2 SHEETS R. RICHARDSON.

HOOP FORMING MACHINE.

APPLICATIONIILED APn.2|, 1919.

-' Patented Mar. 1, 1921.

' 2 SHEETS-SHEET 2' l juav r Y E v m UNITED ST RICHARD nrcnannson, or BEDFORD, nova SGOTIA, oAnADA.

To all whom it may concern:

Be itknown that I, RICHARD RICHARDSON, a subjectof the King of Great Britain, and resident of the town of Bedford, in the Province of Nova Scotia, Dominion of Canada, have invented certain new and useful Improvements in Hoop-Forming Machlnes,

'of which the following is a specification; v

This invention relates to improvements in hoop-forming machines, and the objects of the invention are to facilitate bending wooden or metallic hoops to the desired curvature and with a minimum of time and labor, to provide means for the ready adjustment of the machine, to properly guidethe strips from which the hoops are formed into a machine and discharged therefrom when formed into hoops, and generally to adapt the various parts'to better perform the functions required of them, lVith the above and other objects 1n View the invention consists essentiallyof the im-i proved construction hereinafter described and set forth in the following specification and accompanying drawings;

In thedrawings: I ;Figure 1 is a side elevation ;of the improved machine, the frame and metallic band being broken away.

Fig. 2 is a plan view of the improved ma chine showing the frame and metallic band I broken away.

Fig. 3 is an end view of the improved machine. n c

Fig. 4 is a perspectlve view of one of the guide members and ejectors.

Referring to the drawings,

adjacent to the ends by legs 11 and 12.

The frame 10 is provided adjacent toone end with apair of guides 13 adapted to slidably support a bearing block 1 1, which 1s;

capable of being moved longitudinally of the frame 10 by means of a spindle 15 Specification of Letters Patent.

A representsi the improved hoop forming machine comprising aframe 10 operatively supported.

HOOP-FORMING MACHINE.

a washer orplate 17 and between this washer or plate and the end of the bear-in block 14 a spring 18 is located, which wil give a certain amount of resiliency to the I bearlng block, and assist in tensioning in a mounted in the bifurcated end of abracket 22 which is slidably mounted in the guides 23. The corrugations are not sharp and the object is to make indentures at short inter}.

vals, which will make the hoops bend more easily and satisfactorily without breakage, and an important result of this crimping of the hoops is that they are much more pliable Patented Mar. 1, 1921. Application filed April 21, 1919. Serial No. 291,670. v i

i the pulley a pressure roller 21 is rotatably and can be; worked Very much more easily.

The pressure roller 21 keeps the hand against the strips of wood and thereby keeps the strips of woodagainst the corrugations, so that uniform indentures the whole "length of the hoop.

through a threaded portion of the .guide frame 23, and the spindle is formed with an enlarged head 25 having hand grips 26; thereon by means of which the spindle is manually rotated.-

On the manual rotation of the spindle the bracket 22 will be moved vertically, and it are made overshould be clearly understood that the lower end of the spindle makes rotatable engageis rotated, the bracket is. not rotatable. I

On adjusting the spindle 2a the pressure roller 21 may be caused to coact with the periphery of the corrugated flanged bending wheel 20 with the desired positive pressure.

Adjacent to the pulley 22 a guide bracket 27 is secured to the upper member ofthe frame 10 and depending frointhis guide bracket is an ejector 28, the lower end of which is arranged in alinement with the corrugated flanged bending wheel 20.

On the opposite end of the framea shaft 29-is journaled, and this shaft-carries a corrugated flanged bending wheel 30 similar to the corrugated flanged bending wheel 20,

- ment with the bracket, but while the spindle Like characters of reference refer to like parts in the several figures.

I of which rotary motion is transmitted to the .rollers 21 and 32 on the band 31.

and around the corrugated flanged bending wheel 30 .and corrugated flanged bending wheel 20 an endless metallic band 31 eX- tends. Coacting with the corrugated flanged bending wheel 30 is a pressure roller 32 similar to the pressure roller 21. The pressure roller 32 is carried by a bracket 33 slidably mounted in the guides 34,1118 bracket being connected with the upper end of the spindle 35 which makes threaded engagement with the guide frame 34 and the lower end of the spindle is formed with an enlarged end 37 having hand grips thereon.

As' the spindle 35 is adjusted the bracket 33 is moved in a vertical direction, so that thepressure roller 32 will coact with the corrugated bending wheel 30, and the desired pressure will thus be obtained.

On that end of the shaft 29 remote from the corrugated flanged bending wheel 30 a pinion wheel 39 is mounted, which meshes with a pinion 40 carried by the shaft 41 rotatably' mounted in a bearing superimposed on the frame 10. The shaft 41 is also provided with a belt pulley 42 by means corrugated flanged bending wheel 30 and coacting band 31. v

On'the lower member of the frame 10 a guide 43 is rigidly mounted and from this guide an upwardly extending ejector 47 eX- tends which is arranged in alinement with the corrugated flanged bending wheel 30.

' When this machine is in operation rotary motion is transmitted, to the belt pulley 42 and thence through the pinions 40 and 39., to the corrugated flanged bending wheel 30, which in turn drives the band 31 and corrugated flanged bending wheel 20.

As the band is driven the strips of material pass around the periphery of the bend ing wheels 30 and 20 and between the same and the band 31, and the desired curvature is given to the strips of material, which on becoming disengaged from the corrugated bending wheels 30 and 20 will be engaged by the ejectors and delivered to the side of the machine.

The desired pressure of the band 31 on the corrugated wheels 30 and 20 can be attained by regulating the pressure of the If the band requires tensioning this may be accomplished by rotating the spindle 15 so moving the block 14 longitudinally of the frame and exerting the desired pull on the band 31.

The strips from which the hoops are to be formed are hand fed through the guides 27 and 43 to the corrugated bending wheels '20 and 30 respectively, and as strips are being carried around the said pulleys by the band 31 indentures are made on the inner face of the strips which render the them capable of being bent into "closed for mation to make a complete hoop. When it is 1 found necessary to tension the metallic band .31, then the hand'wheel 16. is rotated thereby moving the spindle 15 longitudinally and the washer or plate 17 coacting with the spring 18 moves the block 14 longitudinally,

so that the corrugated bending wheels will thus be spaced farther aparta'nd give the proper tension to the band.- The spring will provide a certain amount of cushioning effect and permit of a certain yield of the block and thus there will be no hard jarring actions exerting on the bearing wheels when the hooks are-beingpassed aroundthe bending wheels beneath the metallic band;

As many changes could be made in the above construction, and many apparently widely different embodiments of my'invention, within the scope of the claims, constructed without departing'from' the spirit or scope thereof, it is intended that all mat ter containedin the accompanying specification anddrawings, shall be interpreted as illustrative and not in a limiting sense.

lVhat I claim as my invention is.

1. A hoop former of the class described, comprising a frame, acorrugated flanged bending wheel on one end of the frame, a corrugated flanged bending wheel on the otherend of the frame, a band engaging the corrugated flanged bending wheels, pressure rollers coacting with each of the corrugated wheels and pressing the band into con tact therewith, a guide member (mum frame adjacent to each corrugated wheel, and an ejector extending from each guide and ai-- ranged in alinement with rugated wheels.

2.- A hoop former comprising a frame, a corrugated flanged bending wheel on each the adjacent corend of the frame, an endless band engaging the wheels, pressure rollers coacting with each wheel and adapted to press the band against the wheels, slidable brackets carry ing the pressure rollers, threaded spindles for moving the brackets, aguide member adjacent to each wheel, and an ejector carried by each guide member and arranged in alinement with the adjacent wheel.

3. A hoop former, comprising a frame,

a corrugated flanged bending wheel, rotatably mounted at one end of the frame, a block slidably mounted on the frame, a cor rugated flengeci bending wheel rotatably mounted on the block, an adjustable spindle, a washer carried by the spindle coacting with the block, a s ring on the spindle between the end of t e block and the washer, a band engaging the wheels, and pressure rollers coacting with the band and wheels.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

RICHARD RICHARDSON.

Witnesses:

R. B. RICHARDSON, H. A. RICHARDSON. 

